The TESS-Keck Survey. XII. A Dense 1.8 R ⊕ Ultra-short-period Planet Possibly Clinging to a High-mean-molecular-weight Atmosphere after the First Gigayear

The extreme environments of ultra-short-period planets (USPs) make excellent laboratories to study how exoplanets obtain, lose, retain, and/or regain gaseous atmospheres. We present the confirmation and characterization of the USP TOI-1347 b, a 1.8 ± 0.1 R _⊕ planet on a 0.85 day orbi...

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Bibliographic Details

Published in:	The Astronomical Journal
Main Authors:	Ryan A. Rubenzahl, Fei Dai, Andrew W. Howard, Jack J. Lissauer, Judah Van Zandt, Corey Beard, Steven Giacalone, Joseph M. Akana Murphy, Ashley Chontos, Jack Lubin, Casey L. Brinkman, Dakotah Tyler, Mason G. MacDougall, Malena Rice, Paul A. Dalba, Andrew W. Mayo, Lauren M. Weiss, Alex S. Polanski, Sarah Blunt, Samuel W. Yee, Michelle L. Hill, Isabel Angelo, Emma V. Turtelboom, Rae Holcomb, Aida Behmard, Daria Pidhorodetska, Natalie M. Batalha, Ian J. M. Crossfield, Courtney Dressing, Benjamin Fulton, Daniel Huber, Howard Isaacson, Stephen R. Kane, Erik A. Petigura, Paul Robertson, Nicholas Scarsdale, Teo Mocnik, Tara Fetherolf, Luca Malavolta, Annelies Mortier, Aldo Fiorenzano, Marco Pedani
Format:	Article
Language:	English
Published:	IOP Publishing 2024-01-01
Subjects:	Exoplanet astronomy Radial velocity Transit photometry Exoplanet atmospheres Super Earths Exoplanet detection methods
Online Access:	https://doi.org/10.3847/1538-3881/ad28bb